wow…that was a pretty amazing video. I do not doubt global warming, however it is evident that many people do not take it seriously. The things he described in column b, are things that are already starting to take place…Look at the forest fires in California, the floods and hurricanes in New Orleans, the war in the middle east, the drought in Ontario which has caused farmers millions of dollars…I think the effects of ignoring the possibility of global warming are already starting to take place…we need to do something more to make people aware, as this gentleman suggests.